Questions about Privacy, Decision-making, and Big Data

We know that human cognition is full of bias and fallacy, and that humans aren’t Econs. Among other pieces, we know that humans confuse correlation for causation, and that machine learning and big data operate on the level of correlations only. We also know that machine learning can generate good hypotheses for what might be a controlling variable, and what might be a useful course of action.

The questions, then: What determine’s society’s attitude toward the tradeoffs between machine and human decision making, and is that attitude rational? What are the qualities we seek in these decisions?